Drying-cylinder.



PATENTED AUG. 20, 1907.

J. H. WHITTLB DRYING CYLINDER. APPLIGATION nun JAN.3.1906.

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J. H. WHITTLE. 1

DRYING CYLINDER.

APPLICATION FILED JAN. 3. 1906.

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JAMES H. WHITTLE, OF WORCESTER, MASSACHUSETTS.

DRYING-CYLINDER.

Specification of Letters Patent.

Patented Aug. 20, 1907.

Application filed January 3, 1906- $eri 1N 294,479-

To all whom it may concern:

Be it known that I, JAMES H. WEH'ITLE, a citizen of the United States,residing at Worcester, in the county of Worcester and Commonwealth ofMassachusetts, have invented a new and useful Improvement inDrying-Cylinders, of which the following is a specification, accompaniedby drawings forming a part of the same, in which- Figure 1 is an endview of the drying cylinder. Fig. 2 is a section on line 22, Fig. 1, andFig. 3 is a side view of the cylinder partly in section.

Similar reference letters and figures refer to similar parts in thedifferent views.

By my invention I accomplish the more even distribution of heatthroughout the cylinder and the removal of the water of condensationtherefrom, and

it consists in the construction and arrangement of parts as hereinafterdescribed and pointed out in the annexed claims.

Referring to the accompanying drawings 1 denotes the drying cylinder ofwhich the hollow gudgeons 2, 2 rotate in stufling boxes 3, 3 Thecylinder is driven by the gear wheel 4 attached to the gudgeon 2. Theouter ends of the stuffing boxes 3, 3"are closed by caps 5, 5 which areprovided with screws 6, 6, bearing against the gland of the stuffingbox, which consists of a disk 7 bearing against a ring 8, as shown inFig. 2. Integral with the ring 8 is afollower ring 9 which bears againstthe packing l0 surrounding the gudgeon of the cylinder 1. Steam isadmitted through horizontal passages 11 7 formed in the framework, thevertical steam passages 12, one of which is shown in Fig. 2, and throughopen ings 13, in the annular flange 8 into the hollow gudgeons fromwhich it passes into the cylinder 1. I

The above described construction for the admission of steam to a dryingcylinder is substantially like that set forth in Letters Patent issuedto me September 24, 1901, No. 683,237, and forms no part of my presentinvention.

Screwed into the hub 14 of the cap 5 is the outer end of a pipe 15 whichextends through the gudgeon 2, leaving an annular space 13 The inner endof the pipe 15 is bent downward and terminates near the periphery of thecylinder 1. As the pipe 15 is held by the hub 14 it remains stationarywhile the cylinder 1 rotates and the Water of condensation whichaccumulates in the cylinder is forced out through the pipe 15 by thepressure of steam in the cylinder. This method of removing the water ofcondensation by means of a bent pipe with one end terminating near theperiphery of the cylinder 1, is also shown in the aforesaid patent tome, and the broad idea forms no part of my present invention.

The cap 5 is provided with a raised portion 16 pro vided with a waterpassage 17 into which the pipe 15 empties the water of condensation. Thepassage 17 communicates with a vertical passage 18 in the frameworkleading to a horizontal passage 19 also formed in the framework of themachine.

I preferably make, as shown in the drawings, the supporting rails 20 and21 of the drying cylinders hollow to provide passages 11 and 19, andalso the support 22, Fig. 1, of the stuffing boxes 3, 3 is provided withthe vertical passages 12 and 18, but any convenient mode of constructionof these passages might be employed.

I preferably provide the horizontal rail 20 of the framework with alongitudinal passage 11 which is connected with a source of steamsupply, and the horizontal rail 21 is preferably provided with a similarsteam passage 11, and also with a water passage 19 through which thewater of condensation is delivered, and the connecting passages betweenthe drying cylinder and the horizontal passages 11 and 19 are alsoformed in the framework of the machine, the communication with the waterpassage being established by the passage 17 in the cap 5.

What I claim as my invention and desire to secure by Letters Patentis 1. In a metal drying cylinder, the combination with a rotatingcylinder, a hollow gudgeon for the admission of steam, and a stuffingbox provided with a bearing for said gudgeon, a hollow cap closing theend of said stuIIing box with a steam tight joint, and an exhaust pipeleading from the interior of the cylinder through said hollow gudgeonand connected with said hollow cap by a screw threaded joint.

2. In a metal drying cylinder, the combination with a rotating cylinder,a hollow gudgeon for the admission of steam, and a stuffing box providedwith abearing for said gudgeon, of a hollow cap closing the end of saidstutling box with a steam tight joint, and an exhaust pipe leading fromthe interior of the cylinder through said hollow gudgeon and saidstuffing box and enteringsaidhollow cup by a steam tight joint.

3. In a metal drying cylinder, the combination with a rotating cylinderhaving a hollow gudgeon, a' stufiing box forming a bearing for saidgudgeon, a hollow cap 5 closing the end of said stuffing box, an exhaustpipe having one end attached to the hub 14 of the cap 5 by a steam tightjoint and connecting the interior of said cylinder with the interior ofsaid hollow cap 5.

4. In a metal drying cylinder, the combination of a supportingframework, a rotating cy1inder journaled therein and provided withhollow gudgeons, independent water and steam passages formed in theframework, said steam passage communicating with said cylinder, and abent pipe connecting said water passage with the interior of saidcylinder.

JAMES H. WHITTLE.

Witnesses 7 Burns B. FOWLER, PENELOPE COMBERBACH.

